CN203530243U - Fluidized bed powder feed distributor - Google Patents
Fluidized bed powder feed distributor Download PDFInfo
- Publication number
- CN203530243U CN203530243U CN201320414642.7U CN201320414642U CN203530243U CN 203530243 U CN203530243 U CN 203530243U CN 201320414642 U CN201320414642 U CN 201320414642U CN 203530243 U CN203530243 U CN 203530243U
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- Prior art keywords
- fluidized bed
- bed
- powder feed
- fluidized
- powder
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- Expired - Fee Related
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Abstract
The utility model discloses a fluidized bed powder feed distributor and belongs to the technical field of petrochemical and fluidization equipment and the fluidized bed powder feed distributor is used for solving the problem that the existing fluidized bed powder feed distribution is not uniform. The fluidized bed powder feed distributor comprises a fluidized bed and a powder feed inclined pipe and is characterized in that one distribution platform and a plurality of branch pipes are arranged at the edge of the upper part of the fluidized bed, wherein the lower end of the powder feed inclined pipe is connected with the upper end of the distribution platform; the branch pipes are obliquely arranged, the lower ends of the branch pipes are distributed on the cross section of the fluidized bed, the upper ends of the branch pipes are concentrated and are connected with the lower end of the distribution platform, and a plurality of downward discharge ports are formed in the branch pipes. The distributor adopts gravity flowage to distribute powder, does not need fluidization wind and conveying wind, and is simple in equipment and low in energy consumption. The fluidized bed powder feed distributor is used for powder catalyst feed distribution of a turbulent bed, a fast bed or a conveying bed.
Description
Technical field
The utility model belongs to petrochemical complex, fluidizing apparatus technical field, particularly a kind of fluidized bed powder feed distributor.
background technology
Existing block form catalytic cracking full scale plant reclaimable catalyst enters revivifier (fluidized-bed), (conventionally there is no catalyst distribution facility) from the side.This mode of entrance causes fluidized-bed inhomogeneous, and reclaimable catalyst feeding side catalyzer carbon content is high, and opposite side carbon content is low.This inhomogeneous following problem that causes: 1, in fluidized-bed, reclaimable catalyst feeding side carbon content is high, the large temperature of amount of burnt is higher, and the little temperature of the low amount of burnt of opposite side carbon content is lower, and fluidized-bed radial temperature difference is increased, major diameter fluidized-bed is more outstanding, and radial temperature difference reaches tens degree; The inhomogeneous revivifier that makes of carbon content and temperature totally burns decrease in efficiency.2, reclaimable catalyst feeding side carbon content is high, makes the not enough carbon monoxide that easily produces of this region oxygen cause dilute phase secondary combustion, dilute phase overtemperature damage equipment.3, the inhomogeneous regenerated catalyst carbon content that also can cause of fluidized-bed carbon content is inhomogeneous, affects catalyst activity and selectivity.Therefore by reclaimable catalyst in fluidized-bed distributed uniform to eliminate revivifier radial temperature difference excessive, improve revivifier and burn efficiency, avoid the combustion of dilute phase tail and improve regenerated catalyst activity all significant.
Patent 03126336.4 proposes a kind of old catalyst distrbutor, and 1 horizontal house steward connects several downward-sloping arms, and arm is provided with several discharge gates, and horizontal house steward stretches out one end outside device and is connected with external-feeding pipe.Attempt is evenly distributed on revivifier cross section by catalyzer.Catalyzer powder characteristic is that horizontal feed is very difficult, therefore this sparger is very difficult even in fluidized-bed cross-sectional distribution by powder catalyzer.
summary of the invention
The purpose of this utility model is to provide a kind of fluidized bed powder feed distributor, avoids horizontal feed, air conveying, without fluidized wind, conveying wind, and simplified apparatus, reduction energy expenditure.
The utility model solves the technical scheme that its technical problem adopts: comprise fluidized-bed, powder charging inclined tube, it is characterized in that: in fluidized-bed top edge, 1 dispense station, some arms are set; Powder charging inclined tube lower end is connected with dispense station upper end, and some arms are tilting, and lower end is distributed in fluidized-bed cross section, and upper end is concentrated and is connected with dispense station lower end, and arm is offered some discharge ports down.
Further, dispense station inside arranges some division plates, and loosening, fluidizing medium ozzle is set.
Further, arm is tubular or flute profile.
Further, can guiding trestle be set in arm lower end.
The utility model innovative point and positively effect:
The utility model innovative point is: in fluidized-bed top edge, 1 dispense station, some arms are set; Powder charging inclined tube lower end is connected with dispense station upper end, and some arms are tilting, and lower end is distributed in fluidized-bed cross section, and upper end is concentrated and is connected with dispense station lower end, and arm is offered some discharge ports down.
The utility model positively effect is: this divider adopts gravity flow distribution powder, avoids level pipe conveying, air conveying, and without fluidized wind, conveying wind, equipment is simple, energy expenditure is low.
Accompanying drawing explanation
Fig. 1 is a kind of fluidized bed powder feed distributor schematic diagram.
1-powder charging inclined tube, 2-guiding valve, 3-dispense station, 4-arm, the outlet of 5-regenerator, 6-revivifier, 7-discharge port, 8-guiding trestle, 9-main air distributor.
Fig. 2 is a kind of fluidized bed powder feed distributor schematic top plan view.
1-powder charging inclined tube, 3-dispense station, 4-arm, 7-discharge port, 8-guiding trestle.
Embodiment
See Fig. 1, Fig. 2, powder charging inclined tube 1 (guiding valve 2 is installed in bottom) stretches in revivifier 6 and is connected with dispense station 3 upper ends.Some arms 4 upper ends are concentrated and to be connected with dispense station 3 lower ends, and 8 of guiding trestles are passed through in wall in arm 4 lower ends.
Referring to Fig. 1, Fig. 2, reclaimable catalyst enters revivifier 6 from powder charging inclined tube 1 through guiding valve 2, enters each arm 4 after dispense station 3 is carried out equivalent separation, through each discharge port 7, is distributed in fluidized-bed.
Claims (4)
1. a fluidized bed powder feed distributor, comprises fluidized-bed, powder charging inclined tube, it is characterized in that: in fluidized-bed top edge, 1 dispense station, some arms are set; Powder charging inclined tube lower end is connected with dispense station upper end, and some arms are tilting, and lower end is distributed in fluidized-bed cross section, and upper end is concentrated and is connected with dispense station lower end, and arm is offered some discharge ports down.
2. divider according to claim 1, is characterized in that: dispense station inside arranges some division plates, and loosening, fluidizing medium ozzle is set.
3. divider according to claim 1, is characterized in that: arm is tubular or flute profile.
4. divider according to claim 1, is characterized in that: can guiding trestle be set in arm lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320414642.7U CN203530243U (en) | 2013-07-10 | 2013-07-10 | Fluidized bed powder feed distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320414642.7U CN203530243U (en) | 2013-07-10 | 2013-07-10 | Fluidized bed powder feed distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203530243U true CN203530243U (en) | 2014-04-09 |
Family
ID=50416477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320414642.7U Expired - Fee Related CN203530243U (en) | 2013-07-10 | 2013-07-10 | Fluidized bed powder feed distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203530243U (en) |
-
2013
- 2013-07-10 CN CN201320414642.7U patent/CN203530243U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20160710 |